I have a '95 328 and the engine has lost all compression. It has only travelled 125,000kms. This has happened fairly suddenly. Can the engine be rebored and sleeved? Can I use the standard BMW pistons and rings if I do this. I am unsure about using another standard BMW engine block in case the same thing happens again. It is an aluminium block that has failed.
328 engine failure
- Thread starter Peter Baigent
- Start date
Hmmmm........It is extremely rare for bmw blocks to fail at that mileage, and it is even rarer for compression to be lost in all cylinders at once. I think it may be cam related. Take off the valve cover and see if the timing chain is still attached. Has it been over reved? Have you used a compression guage to check the cylinders?
The cam is turning, but we haven't had a chance to remove the head yet. Will let you know what it is when we do. My mechanic suspects that the nickel plating on the bore has come away, but I will be surprised if that is the case as it all happen suddenly. If that turns out to be the case, I do not want to use another BMW block. I would rather rebore and sleeve the existing one. It is early days to be thinking of that, I know, but I need to know if the BMW pistons and rings will be compatible with a sleeve in the cylinder as they normally run with the nickel plating.